Improvements in or relating to Telephone Communication Systems,申请号GB19670014476-传众专利搜索

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发明名称	Improvements in or relating to Telephone Communication Systems
摘要
申请公布号	GB1161705(A)	申请公布日期	1969.08.20
申请号	GB19670014476	申请日期	1967.03.30
申请人	NIPPON TELEGRAPH & TELEPHONE PUBLIC CORPORATION;OKI ELECTRIC INDUSTRY CO. LTD.;NIPPON ELECTRIC COMPANY LIMITED;HITACHI LTD.;FUJITSU LIMITED	发明人
分类号	H04Q3/54	主分类号	H04Q3/54
代理机构		代理人
主权项
地址

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